Sunspot drawing of 1991-4-15

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https://doi.org/10.7891/e-manuscripta-145854



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1991-04-15
07:30
Hs 1304.6:3129
https://doi.org/10.7891/e-manuscripta-145854
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
155 11 18 D -11 336
156 1 3 J 5 334
166 1 3 J 6 312
170 23 22 D 28 285
171 32 26 C -25 259
180 81 72 E 8 243
182 1 3 J -27 231
184 3 2 A -14 290
186 5 3 B 14 265
187 3 3 B 8 263
188 21 17 C 13 215
190 1 1 A -15 267
191 18 14 B -19 242
192 10 14 D -10 188
193 1 1 A -30 201
194 2 2 A -21 185
195 9 9 C -7 182
17 223 213